Server is Archlinux with KF5 and kdeconnect 1.0.3-1 from packages. Client is Android 4.4 with app 1.6.3 from f-droid. I have two media players publish their state via MPRIS (two instances of mpd and mpdris <https://github.com/eonpatapon/mpDris2> each). The plasmoid shows & controls both instances fine, but the app only shows one of them, even though there is a dropdown which seems to select music players. The label in that dropdown is "Music Player Daemon", maybe the problem is that the name used there is identical for both?
I can confirm that's indeed the issue. I'll see if I can improve the situation (but it might not be soon).
Was fixed by: commit 9e0d4874c072646f1018ad413d59d1f43e590777 Author: Jean Vincent <jean.vincent@posteo.net> Date: Wed Aug 2 15:42:01 2017 +0200 Hasn't been released yet.